Why Is My Wooden Door Sticking in Winter?

Why Is My Wooden Door Sticking in Winter?

The Short Answer: Wood Absorbs Moisture

Timber is a naturally hydroscopic material, meaning it absorbs moisture from the air. During a coastal winter in places like Port Kennedy or Secret Harbour, the ambient humidity rises significantly. This causes the wood fibres to expand. As a result, the door swells—usually across its width—causing friction against the door frame. You will typically feel this bind at the top or bottom leading edges.

Expert Pushback: Do Not Sand It Yet

We see a lot of people pull out an aggressive belt sander as soon as a door starts sticking. Don’t do this.

Taking a sander to a swollen door in July is a classic homeowner mistake. If you plane off 5mm of timber while the door is engorged with moisture, you will be left with a massive, draughty 5mm gap when December rolls around and the wood shrinks down in the summer heat. Unless your door has become completely inoperable, wait for the wood to dry out before making permanent cuts.

How to Fix a Sticking Door Properly

1. Check the Hinges First

Look at your hinges before you reach for sandpaper. Heavy wooden doors often sag over time because the short factory screws pull loose from the door jamb. Tightening the top hinge screws will frequently lift the door enough to stop it catching at the top edge. If the thread is stripped, replace the standard screws with 75mm timber screws to securely bite into the structural stud behind the frame.

2. Identify the Rubbing Point

Slide a piece of paper or thin cardboard around the edge of the closed door. Where the paper stops is exactly where the bind is occurring. This saves you from adjusting parts of the door that are already clearing the frame.

3. Plane Conservatively

If the hinges are tight and perfectly aligned, but the door still sticks, carefully sand or plane the exact point of friction. Take off 1mm to 2mm maximum. It is always better to take off too little than too much.

4. Seal the Edges (The Most Critical Step)

If you plane the door, you must repaint or seal the newly exposed timber. Often, installers skip painting the very top and bottom edges of internal doors. These unpainted edges act like giant sponges for winter moisture. Removing the door and applying a protective sealant coat to the top and bottom edges is the single best preventative measure against seasonal swelling.

Indicative Professional Repair Costs

If diagnosing hinge sag and planing timber feels too risky, hiring a professional carpenter is a practical, affordable route. Standard sliding door repairs or hinged door adjustments typically range from $120 to $250. This covers identifying the bind, rehanging if necessary, and adjusting the hardware.

In cases where older, hollow-core doors have suffered severe water damage and delamination, it might be more cost-effective to replace them. Upgrading to solid core internal doors provides better acoustic insulation and durability, provided they are sealed correctly upon installation. If you are unsure what to choose, reviewing the best internal door styles for your specific home layout is a great starting point.

Why Is My Wooden Door Sticking in Winter?

Winter in Perth brings rain, humidity, and a common household annoyance: wooden doors that stick, scrape, and refuse to close properly. Here’s why it happens and what you can do about it without ruining your door forever.

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The Short Answer: Wood Absorbs Moisture

Timber is a naturally hydroscopic material, meaning it absorbs moisture from the air. During a coastal winter in places like Port Kennedy or Secret Harbour, the ambient humidity rises significantly. This causes the wood fibres to expand. As a result, the door swells—usually across its width—causing friction against the door frame. You will typically feel this bind at the top or bottom leading edges.

Expert Pushback: Do Not Sand It Yet

We see a lot of people pull out an aggressive belt sander as soon as a door starts sticking. Don’t do this.

Taking a sander to a swollen door in July is a classic homeowner mistake. If you plane off 5mm of timber while the door is engorged with moisture, you will be left with a massive, draughty 5mm gap when December rolls around and the wood shrinks down in the summer heat. Unless your door has become completely inoperable, wait for the wood to dry out before making permanent cuts.

How to Fix a Sticking Door Properly

1. Check the Hinges First

Look at your hinges before you reach for sandpaper. Heavy wooden doors often sag over time because the short factory screws pull loose from the door jamb. Tightening the top hinge screws will frequently lift the door enough to stop it catching at the top edge. If the thread is stripped, replace the standard screws with 75mm timber screws to securely bite into the structural stud behind the frame.

2. Identify the Rubbing Point

Slide a piece of paper or thin cardboard around the edge of the closed door. Where the paper stops is exactly where the bind is occurring. This saves you from adjusting parts of the door that are already clearing the frame.

3. Plane Conservatively

If the hinges are tight and perfectly aligned, but the door still sticks, carefully sand or plane the exact point of friction. Take off 1mm to 2mm maximum. It is always better to take off too little than too much.

4. Seal the Edges (The Most Critical Step)

If you plane the door, you must repaint or seal the newly exposed timber. Often, installers skip painting the very top and bottom edges of internal doors. These unpainted edges act like giant sponges for winter moisture. Removing the door and applying a protective sealant coat to the top and bottom edges is the single best preventative measure against seasonal swelling.

Indicative Professional Repair Costs

If diagnosing hinge sag and planing timber feels too risky, hiring a professional carpenter is a practical, affordable route. Standard sliding door repairs or hinged door adjustments typically range from $120 to $250. This covers identifying the bind, rehanging if necessary, and adjusting the hardware.

In cases where older, hollow-core doors have suffered severe water damage and delamination, it might be more cost-effective to replace them. Upgrading to solid core internal doors provides better acoustic insulation and durability, provided they are sealed correctly upon installation. If you are unsure what to choose, reviewing the cost to hang a door or looking through the best internal door styles for your specific home layout is a great starting point.

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More Advice on Doors

Need Your Doors Adjusted or Replaced?

If tightening hinges and sanding edges isn’t working out, give Andrew a call. We offer fixed pricing on professional door repair and installation to stop the scraping right away.

Andrew Van Shelven

Carpenter

With over 27 years in the trade, Andrew Van Shelven is a fully licensed carpenter (Lic. 9005265) and the owner-operator of Breezebay Carpentry. Based in Secret Harbour, he works on projects across Perth’s southern suburbs through to Mandurah, and takes on larger jobs as far as Perth’s northern suburbs.

Andrew’s hands-on experience spans both interior and exterior carpentry — from floorboard installation, wall removals and gyprocking through to decking, pergolas, patios and timber fencing. Homeowners across the region choose Breezebay Carpentry for upfront, fair pricing and a tradesman who treats every job like his own.

When he’s not on a job site, Andrew’s usually enjoying Secret Harbour’s relaxed coastal lifestyle — the same outdoor-loving mindset that shapes how he designs decks, pergolas and outdoor living spaces for local families.

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